Abstract: The present invention relates to curable mixtures for the sealing, encapsulation, bonding or coating of opto-electronic components, such as OLEDs, solar cells, optical sensors and liquid-crystal displays, or for the alignment of liquid crystals. The mixtures comprise in total at least 50 percent by weight of vinyl ethers.

Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterized in that it comprises one or more compounds of the formula I and one or more compounds selected from the compounds of the formulae IA and IB in which R1, R2, L1-4, X1 and X2 have the meanings indicated in claim 1.

Abstract: The present invention relates to curable mixtures for the sealing, encapsulation, bonding or coating of opto-electronic components, such as OLEDs, solar cells, optical sensors and liquid-crystal displays, or for the alignment of liquid crystals.

Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, characterised in that it comprises one or more compounds of the formula I and one or more compounds selected from the compounds of the formulae IA and IB in which R1, R2, L1-4, X1 and X2 have the meanings indicated in claim 1.

Abstract: The invention relates to pyran derivatives of the formula I and to a process and intermediates for their preparation and derivatisation, and to the use thereof in liquid-crystalline media.

Abstract: The invention relates to novel dioxane derivatives of the formula R1-(A1-Z1)m-G-(Z2-A2)n-R2, in which G denotes (I) or (II), and in which R1, R2, A1, A2, Z1, Z2, m and n have the meanings indicated in claim 1, to the use thereof as component(s) of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.

Abstract: The invention relates to tetrahydropyran derivatives of the general formula I and to processes for the preparation thereof.

Abstract: The invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive dielectric anisotropy, comprising at least one pyran compound of the formula I and one or more compounds selected from the group consisting of the compounds C1 to C9 in which R, R1, the rings A, B and P, L1, L2, X, X1, Z1, Z2, m and n are as defined in Claim 1, and to electro-optical displays containing a liquid-crystalline medium of this type.

Abstract: A dielectrically positive liquid crystalline media comprising a dielectrically positive component, component A, comprising a dielectrically positive compound of formula I wherein the parameters have the meaning given in the specification, and optionally a second dielectrically positive component, component B, comprising one or more dielectrically positive compounds having a dielectric anisotropy of more than 3 and optionally a dielectric neutral component, component C, is suitable for use in liquid crystal displays, especially active matrix displays, and, in particular, TN and to IPS displays.

Abstract: The invention relates to novel dioxane derivatives of the formula R1-(A1-Z1)mG-(Z2-A2)n-R2, in which G denotes (I) or (II), and in which R1, R2, A1, A2, Z1, Z2, m and n have the meanings indicated in claim 1, to the use thereof as component(s) of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.

Abstract: Novel phenylcyclohexanes of the formula I in which n is 0 to 7, Q1 and Q2 are H, or one of these radicals is alternatively CH3, r is 0, 1, 2, 3, 4 or 5, A is trans-1,4-cyclohexylene, 1,4-phenylene, 3-fluoro-1,4-phenylene or a single bond, X is F, Cl, —CF3, —CN, —OCF3 or —OCHF2, and Y and Z are each, independently of one another, H or F, with the proviso that, in the case where A is a single bond, Q1=Q2=H and simultaneously X=CN, Y and/or Z are F.

Abstract: The present invention relates to a liquid-crystalline medium based on a mixture of polar compounds of positive or negative dielectric anisotropy which is characterised in that it comprises one or more compounds of the general formula I in which R1 and R2 are each, independently of one another, identically or differently, H, an alkyl radical having from 1 to 12 carbon atoms which is unsubstituted, monosubstituted by CN or CF3 or at least monosubstituted by halogen, where, in addition, one or more CH2 groups in these radicals may each, independently of one another, be replaced by —O—, —S—, —CH?CH—, —C?C—, —CO—, —CO—O, —O—CO— or —O—CO—O— in such a way that 0 atoms are not linked directly to one another, to the use thereof for electro-optical purposes, and to electro-optical display devices which contain this medium.

Abstract: The invention relates to liquid-crystalline compounds of formula (I), wherein R11, X11, Z11, Z12, Z13, L11, L12, L13, L14, L15 and L16 have the meanings as cited in Claim 1, and to a method for the production thereof, their use in liquid-crystalline media, liquid-crystalline media containing at least one compound of formula (I), and to electro-optical displays containing a liquid-crystalline medium of this type

Abstract: The invention relates to liquid-crystalline compounds of the formula (I), where R11, X11, L11, Y and W are as defined in claim 1, and to the use thereof in liquid-crystalline media, to liquid-crystalline media comprising at least one compound of the formula (I) and to electro-optical displays containing a liquid-crystalline medium of this type

Abstract: The present invention relates to chromane derivatives of the general formula I and of the general formula (II) and chromene derivatives of the general formulae (III) and (IV) and chromene derivatives of the general formulae (V) and (VI) in which R1, R2, A1, A2, Z1, Z2, L1, L2, L3, L4, m and n have the meanings indicated in Claim 1 in relation to the respective formulae, to a process for the preparation thereof, to the use thereof as component(s) in liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention.

Abstract: The invention relates to liquid-crystalline phenol esters of the formula I in which R, A1, Z1, m, L and Y are as defined in Claim 1, to liquid-crystalline media comprising at least one phenol ester of the formula I, and to electro-optical displays containing such a liquid-crystalline medium.

Abstract: The invention relates to pyran derivatives of formula I and processes and intermediates for their preparation and derivatisation, and the use thereof in liquid-crystalline media.

Abstract: The invention relates to liquid-crystalline compounds of the formula (I) in which R1, R2, A1, A2, A3, A4, Z1, Z2, Z3, a, b and c have the meanings indicated in Claim 1, and to liquid-crystalline media comprising at least one compound of the (I) and to electro-optical displays containing a liquid-crystalline medium of this type.

Abstract: The present invention relates to a process for the preparation of a compound of the general formula R-(A1-Z-)mB—CF2O-A2-(A3)n—R???(I) in which R is alkyl, in which one or more CH2 groups may be replaced, independently of one another, by O, CF2, CH?CH, CH?CF or CF?CF, with the proviso that peroxide structures O—O and formaldehyde acetals O—CH2—O are excluded, A1 is, independently of one another, 1,4-cyclohexylene, 2,5-1,3-dioxanylene, 1,3-cyclobutylene or A2 and A3 are 1,4-phenylene, in which, independently of one another, from one to four hydrogens may be replaced by fluorine or one or two CH groups may be replaced by N, Z is a single bond, —CH2—CH2—, —CF2—CF2—, —CH?CH—, —CF?CF—, —CH?CF— or —CF?CH—, B is 2,6-disubstituted naphthalene, 2,6-disubstituted 5,6,7,8-tetrahydronaphthalene or 2,6-disubstituted trans-decalin, R? is R, F, OCF3, OCF2H, CF3, CI, SF5, CN or NCS, and m and n are, independently of one another, 0 or 1, comprising the following steps: a) conversion of a compound of the genera

Abstract: The invention relates to novel cyclobutane derivatives of the formula (I), in which R1, R2, A, Z, m, n and o have the meaning indicated in claim 1, to the use thereof as components of liquid-crystalline media, and to liquid-crystal and electro-optical display elements which contain the liquid-crystalline media according to the invention